MF-RX160-2 Equivalent & Substitute Parts Reference

Part Overview

The Bourns MF-RX160-2 is a polymeric PTC resettable fuse rated for 60V at 1.6A hold current, designed for through-hole radial mounting in disc configuration. This component is classified as obsolete, making identification of suitable alternatives essential for ongoing design support and production continuity. Substitute parts must maintain electrical performance characteristics and mechanical compatibility while meeting current availability and compliance requirements.

Substiute Parts

MF-RX160-2

Bourns Inc.In Stock: 815MF-RX160-2 Datasheet

Current PartRFQ

MF-RX160/72-0

Bourns Inc.In Stock: 4908MF-RX160/72-0 Datasheet

DirectRFQ

MF-RX160/72-2

Bourns Inc.In Stock: 123556MF-RX160/72-2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MF-RX160-2 are identified based on strict electrical and mechanical parameter alignment within the Multifuse MF-RX product family. The primary substitution criterion is voltage rating compatibility: the MF-RX160-2 operates at 60V maximum, while substitute candidates operate at 72V maximum. This represents an uprated voltage specification that maintains backward compatibility in 60V applications while providing enhanced margin for higher-voltage circuit designs.

All substitute parts maintain identical hold current (1.6A), trip current (3.2A), maximum current (40A), time-to-trip (11.4s), initial resistance (90 mOhms minimum), and post-trip resistance (220 mOhms maximum) specifications. Physical dimensions, lead spacing, and through-hole radial mounting configuration remain unchanged. Operating temperature range, approval agencies (cURus, TUV), and compliance certifications (ROHS3, REACH Unaffected) are preserved across all alternatives.

Substitutes are differentiated by packaging format: bulk packaging versus cut tape (CT) configuration. This distinction affects procurement and assembly workflow but does not alter electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

The MF-RX160-2 is classified as obsolete, necessitating transition to active product alternatives. Both substitute parts—MF-RX160/72-0 and MF-RX160/72-2—maintain active product status with Bourns Inc., ensuring long-term availability and manufacturing support.

MF-RX160/72-0 (bulk packaging) and MF-RX160/72-2 (cut tape packaging) are parametrically equivalent alternatives with identical electrical characteristics and mechanical form factors. Selection between these two substitutes depends on procurement and assembly requirements rather than technical performance.

The 72V maximum voltage rating of substitute parts provides enhanced voltage margin compared to the 60V specification of the obsolete MF-RX160-2. This uprated specification is fully compatible with applications designed for 60V operation and offers additional design flexibility for circuits operating at intermediate voltage levels.

All substitute parts carry identical regulatory approvals (cURus, TUV) and compliance certifications (ROHS3, REACH Unaffected), ensuring regulatory continuity in applications requiring these certifications.

Frequently Asked Questions (FAQ)

Q: Can MF-RX160/72-0 or MF-RX160/72-2 be used as direct replacements for MF-RX160-2?

A: Yes. Both substitute parts maintain identical hold current (1.6A), trip current (3.2A), initial resistance (90 mOhms minimum), post-trip resistance (220 mOhms maximum), time-to-trip (11.4s), and physical dimensions (16.30mm x 3.10mm with 5.10mm lead spacing). The 72V maximum voltage rating is compatible with 60V circuit designs.

Q: What is the difference between MF-RX160/72-0 and MF-RX160/72-2?

A: Both parts are electrically and mechanically identical. The difference is packaging format: MF-RX160/72-0 is supplied in bulk packaging, while MF-RX160/72-2 is supplied in cut tape (CT) configuration. Selection depends on procurement and assembly workflow requirements.

Q: Are the substitute parts available in higher inventory quantities?

A: MF-RX160/72-2 (cut tape) has significantly higher inventory availability (123,464 pcs) compared to MF-RX160/72-0 (bulk, 4,859 pcs). The obsolete MF-RX160-2 has limited remaining stock (712 pcs).

Q: Do the substitute parts meet the same regulatory requirements as the original part?

A: Yes. Both MF-RX160/72-0 and MF-RX160/72-2 carry identical approvals (cURus, TUV) and compliance certifications (ROHS3 Compliant, REACH Unaffected, EAR99 ECCN classification).

Q: Will the substitute parts function identically in existing circuit designs?

A: Yes. Electrical performance parameters—hold current, trip current, maximum current, time-to-trip, initial resistance, and post-trip resistance—are identical. Operating temperature range (-40°C to 85°C) and through-hole radial mounting configuration are preserved. The uprated 72V specification provides additional voltage margin without affecting 60V circuit operation.